kasan: GPF could be caused by NULL-ptr deref or user memory access
Bluetooth: Invalid header checksum
Bluetooth: Invalid header checksum
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 19814 Comm: kworker/1:0 Not tainted 5.0.0-rc7+ #78
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events hci_uart_write_work
RIP: 0010:hci_uart_write_work+0x1b6/0x710 drivers/bluetooth/hci_ldisc.c:180
Code: 0f 85 6a 04 00 00 49 8b b4 24 c8 00 00 00 4c 89 ef e8 3e 6f 53 02 89 c6 48 8b 45 d0 48 8d b8 5c 10 00 00 48 89 f8 48 c1 e8 03 <0f> b6 14 18 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 1d
RSP: 0018:ffff88801aae7cb0 EFLAGS: 00010203
RAX: 000000000000020b RBX: dffffc0000000000 RCX: 0000000000000000
kobject: 'loop3' (00000000da5e4275): fill_kobj_path: path = '/devices/virtual/block/loop3'
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000105c
RBP: ffff88801aae7d30 R08: ffff888054ffa680 R09: ffff888054ffaf48
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880907ed780
R13: ffff88805a4f6240 R14: ffff8880860a43a8 R15: ffff8880907ed7f0
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Bluetooth: Can't allocate HCI device
CR2: 0000000000606ed8 CR3: 000000008f3e8000 CR4: 00000000001406e0
Bluetooth: Invalid header checksum
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 process_one_work+0x98e/0x1790 kernel/workqueue.c:2173
kobject: 'loop4' (0000000005b5d565): kobject_uevent_env
 worker_thread+0x98/0xe40 kernel/workqueue.c:2319
kobject: 'loop4' (0000000005b5d565): fill_kobj_path: path = '/devices/virtual/block/loop4'
 kthread+0x357/0x430 kernel/kthread.c:246
Bluetooth: Invalid header checksum
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
kobject: 'loop1' (000000008932808d): kobject_uevent_env
kobject: 'loop1' (000000008932808d): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (0000000005b5d565): kobject_uevent_env
kobject: '(null)' (00000000fb7ecf88): kobject_cleanup, parent           (null)
kobject: '(null)' (00000000fb7ecf88): calling ktype release
kobject: 'loop4' (0000000005b5d565): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (000000008932808d): kobject_uevent_env
kobject: 'loop1' (000000008932808d): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop5' (00000000760d65b1): kobject_uevent_env
kobject: 'loop5' (00000000760d65b1): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (00000000f7b95b8b): kobject_uevent_env
kobject: 'loop0' (00000000f7b95b8b): fill_kobj_path: path = '/devices/virtual/block/loop0'
---[ end trace 27a297a0efacc24f ]---
RIP: 0010:hci_uart_write_work+0x1b6/0x710 drivers/bluetooth/hci_ldisc.c:180
Code: 0f 85 6a 04 00 00 49 8b b4 24 c8 00 00 00 4c 89 ef e8 3e 6f 53 02 89 c6 48 8b 45 d0 48 8d b8 5c 10 00 00 48 89 f8 48 c1 e8 03 <0f> b6 14 18 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 1d
RSP: 0018:ffff88801aae7cb0 EFLAGS: 00010203
RAX: 000000000000020b RBX: dffffc0000000000 RCX: 0000000000000000
kobject: 'loop2' (000000000b089afb): kobject_uevent_env
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 000000000000105c
kobject: 'loop2' (000000000b089afb): fill_kobj_path: path = '/devices/virtual/block/loop2'
RBP: ffff88801aae7d30 R08: ffff888054ffa680 R09: ffff888054ffaf48
kobject: '(null)' (0000000007dc49c2): kobject_cleanup, parent           (null)
kobject: '(null)' (0000000007dc49c2): calling ktype release
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880907ed780
kobject: 'loop4' (0000000005b5d565): kobject_uevent_env
R13: ffff88805a4f6240 R14: ffff8880860a43a8 R15: ffff8880907ed7f0
Bluetooth: Invalid header checksum
kobject: 'loop4' (0000000005b5d565): fill_kobj_path: path = '/devices/virtual/block/loop4'
Bluetooth: Invalid header checksum
kobject: '(null)' (00000000966e58f3): kobject_cleanup, parent           (null)
kobject: '(null)' (00000000966e58f3): calling ktype release
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
kobject: 'loop1' (000000008932808d): kobject_uevent_env
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop1' (000000008932808d): fill_kobj_path: path = '/devices/virtual/block/loop1'
CR2: 0000000000fc5fd0 CR3: 00000000228cc000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: '(null)' (00000000c8ba06c7): kobject_cleanup, parent           (null)
kobject: 'loop0' (00000000f7b95b8b): kobject_uevent_env
kobject: '(null)' (00000000c8ba06c7): calling ktype release
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop0' (00000000f7b95b8b): fill_kobj_path: path = '/devices/virtual/block/loop0'